<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>姓名案例_methods实现</title>
    <script type="text/javascript" src="../js/vue.js"></script>
</head>
<body>
    <!-- 准备好一个容器 -->
    <div id="root">
        姓：<input type="text" v-model="firstName"><br><br>
        名：<input type="text" v-model="lastName"><br><br>
        姓名：<span>{{fullName()}}</span>
    </div>
</body>
<script type="text/javascript">
Vue.config.productionTip=false

new Vue({
    el:'#root',
    data:{
        firstName:'张',
        lastName:'三'
    },
    methods:{
        fullName(){
            return this.firstName+'-'+this.lastName
        }
    }
})
</script>
</html>